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Verified answer
Gambar 1 = 4 = 2 x (1x2)gambar 2 = 12 = 2 x (2x3)
gambar 3 = 24 = 2 x (3x4)
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gambar n = 2 x (n) x (n+1)
gambar 10 = 2 x 10 x (10+1)
= 2 x 10 x 11
= 220